website http://www.lgservice.com LG Room Air Conditioner OWNER'S MANUAL MODELS : SU/SZ/S3 Chassis (INVERTER MODELS) IMPORTANT • Please read this owner's manual carefully and thoroughly before installing and operating your room air conditioner. • Please retain this owner's manual for future reference after reading it thoroughly.
Room Air Conditioner Owner’s Manual TABLE OF CONTENTS Safety Precautions.........................3 FOR YOUR RECORDS Write the model and serial numbers here: Model # Prior to Operation ..........................9 Serial # You can find them on a label on the side of each unit. Dealer's Name Introduction ..................................10 Electrical Safety ...........................11 Operating Instructions.................12 Maintenance and Service ............
Safety Precautions Safety Precautions This symbol indicates the possibility of death or serious injury. This symbol indicates the possibility of injury or damage to properties only. ■ The meanings of the symbols used in this manual are as shown below. Be sure not to do. Be sure to follow the instruction. ■ Installation Do not use damaged power cords, plugs, or a loose socket. For electrical work, contact the dealer, seller, a qualified electrician, or an Authorized Service Center.
Safety Precautions Be cautious when unpacking and installing the product. For installation, always contact the dealer or an Authorized Service Center. Do not install the product on a defective installation stand. • Shape edges could cause injury. Be especially careful of the sharp edges. • There is risk of fire, electric shock, explosion, or injury. • It may cause injury, accident, or damage to the product. Be sure the installation area does not deteriorate with age.
Safety Precautions Grasp the plug to remove the cord from the outlet. Do not touch it with wet hands. Do not place a heater or other appliances near the power cable. • There is risk of fire or electric shock. • There is risk of fire or electric shock. • There is risk of fire, failure of the product, and/or electric shock. Do not allow water to run into electric part. Do not store of use flammable gas or combustibles near the air conditioner.
Safety Precautions Do not open the inlet grill of the product during operation. (Do not touch the electrostatic filter, if the unit is so equipped.) When the product is soaked (flooded or submerged), contact an Authorized Service Center. Ventilate the room well when using this appliance together with a stove, etc. • There is risk of physical injury, electric shock, or product. • There is risk of electrical shock. • An oxygen shortage may occur.
Safety Precautions Use two or more people to lift and transport the air conditioner Do not install the product where it will be exposed to sea wind (salt spray) directly. • It may cause a problem for your neighbors. • Avoid personal injury. • It may cause corrosion in the product. Corrosion, particularly on the condenser and evaporator fins, could cause product malfunction or inefficient operation. Do not direct airflow at room occupants.(Don't sit in the draft.
Safety Precautions Always insert the filter securely. Clean the filter every two weeks or more often if necessary. Do not insert hands or other objects through the air inlet or outlet while the air conditioner is plugged in. Do not drink the water drained from the unit. • A dirty filter reduces the efficiency of the air conditioner and could cause product malfunction or damage. • There are sharp and moving parts that could cause personal injury.
Prior to Operation Prior to Operation Preparing for Operation ENGLISH 1. Contact an installation specialist for installation. 2. Plug in the power plug properly. 3. Use a dedicated circuit. 4. Do not use an extension cord. 5. Do not start/stop operation by plugging/unplugging the power cord. 6. If the cord/plug is damaged, replace it with only an authorized replacement part. Usage 1. Being exposed to direct airflow for a long time may be hazardous to your health.
Introduction Introduction Symbols used in this Manual This symbol alerts you to the risk of electric shock. This symbol alerts you to hazards that may cause harm to the air conditioner. NOTICE This symbol indicates special notes. Features This appliance should be installed in accordance with national wiring regulations. This guide acts as a guide to help to explain product features.
Electrical Safety Electrical Safety • Do not cut or remove the grounding prong from the power plug. • Attaching the adapter ground terminal to the wall receptacle cover screw does not ground the appliance unless the cover screw is metal and not insulated, and the wall receptacle is grounded through the house wiring. • If you have any doubt whether the air conditioner is properly grounded, have the wall receptacle and circuit checked by a qualified electrician.
Operating Instructions Operating Instructions Remote Controller 1. Remove the battery cover by pulling it according to the arrow direction. 2. Insert new batteries making sure that the (+) and (-) of battery are installed correctly. 3. Reattach the cover by sliding it back into position. NOTICE Use 2 AAA(1.5volt) batteries. Do not use rechargeable batteries. Storage and Tips for using the Remote Controller • The remote controller may be stored by mounting it on a wall.
Operating Instructions Remote Control Operations The controls will look like the following. 1. START/STOP BUTTON Operation starts when this button is pressed and stops when the button is pressed again. 2. OPERATION MODE SELECTION BUTTON Used to select the operation mode. 3. ROOM TEMPERATURE SETTING BUTTONS Used to select the room temperature. 4. INDOOR FAN SPEED SELECTOR Used to select fan speed in four steps low, medium, high and CHAOS. 5 5.
Operating Instructions Cooling operation 1 Press the Start/Stop button. The unit will respond with a beep. 2 Open the door on the remote control. To select Cooling Operation or Healthy Dehumidification Operation. Cooling 3 ON Auto changeover Healthy Dehumidification Heating (Heat pump model only) Press the Jet Cool button to operate the speed cooling mode and the unit will operate in super high fan speed on cooling mode for 30 minutes.
Operating Instructions Auto changeover operation ENGLISH 1 Press the Start/Stop button. The unit will respond with a beep. 2 Open the door of the remote controller. To select Auto Changeover Operation, press the Operation Mode Selection button. Each time the button is pressed, the operation mode is shifted in the direction of the arrow. Cooling 3 Auto changeover Healthy Dehumidification Heating (Heat pump model only) Close the door of the remote controller.
Operating Instructions Auto operation (Optional) 1 Press the Start/Stop button. The unit will respond with a beep. 2 Open the door of the remote controller. To select Auto Operation, press the operation mode selection button. Each time the button is pressed, the operation mode is shifted in the direction of the arrow.
Operating Instructions Healthy dehumidification operation Press the Start/Stop button. The unit will respond with a beep. 2 Open the door of the remote controller. To select Healthy Dehumidification Operation, press the Operation Mode Selection button. Each time the button is pressed, the operation mode is shifted in the direction of the arrow.
Operating Instructions Heating operation (Heat pump model only) 1 Press the Start/Stop button. The unit will respond with a beep. 2 Open the door of the remote controller. To select Heating Operation, press the Operation Mode Selection button. Each time the button is pressed, the operation mode is shifted in the direction of the arrow. Cooling 3 ON Auto changeover Healthy Dehumidification Heating (Heat pump model only) Close the door of the remote controller.
Operating Instructions Jet cool operation ENGLISH 1 Press the Start/Stop button. The unit will respond with a beep. 2 Press the Jet Cool button to operate the speed cooling mode and the unit will operate at super high fan speed on cooling mode for 30 minutes.
Operating Instructions Power heat operation (Optional) 1 Press the Start/Stop button. The unit will respond with a beep. 2 Open the door of the remote controller. To select Heating Operation. Cooling Auto changeover Healthy Dehumidification Heating (Heat pump model only) 3 Press the Power Heat button to operate the speed heating mode and the unit will operate at super high fan speed on heating mode for 60 minutes.
Operating Instructions NANO PLASMA purification operation(Optional) ENGLISH 1 Press the Start/Stop button. The unit will respond with a beep. 2 Open the door of the remote controller. Press the PLASMA button. Operation will start when the button is pressed and stop when the button is pressed again. 3 Set the fan speed again with the door of the remote controller closed. You can select the fan speed in four steps-low, medium, high or CHAOS.
Operating Instructions 2nd F operation 1 Press the Start/Stop button. The unit will respond with a beep. 2 Open the door of the remote control and press the 2nd Function button to operate functions printed in blue unter buttons. (Check the indication of 2nd function on the display of the remote controller.) These buttons can set the timer as follows: ON OFF SET CANCEL ON OFF SET AUTO CLEAN 3 2nd function disappears in a short time automatically or when the button is pressed again.
Operating Instructions Additional Features Sleep mode 2. The Timer is programmed in one-hour increments by pressing the Sleep Mode Auto button 1 to 7 times. The sleep mode is available for 1 to 7 times. To alter the time period in steps of 1 hour, press the Sleep Mode Button while aiming at air conditioner. 3. Make sure the Sleep Mode Auto LED lights up. To cancel the Sleep Mode, press the sleep Mode Auto button several times until the star ( ) disappears from the operation display.
Operating Instructions Vertical Airflow Direction Control The up/down airflow (Vertical Airflow) can be adjusted by using the remote control. 1. Press the Start/Stop button to start the unit. 2. Press Chaos Swing button and the louvers will swing up and down. Press the Chaos Swing button again to set the vertical louver at the desired airflow direction.
Operating Instructions Auto clean(Optional) NOTICE This function is to remove unpleasant smells from mold and other bacteria in the air-conditioner, and to remove humidity automatically during humidly summer, which supplies the indoor with purified air. Forced operation Operation procedures when the remote control can't be used. The operation will be started if the power button is pressed. If you want to stop operation, re-press the button. Cooling High Room Temp.
Maintenance and Service Maintenance and Service Indoor Unit Turn the system off before cleaning. To clean, wipe with a soft, dry cloth. Do not use bleach or abrasives. NOTICE Supply power must be disconnected before cleaning the indoor unit. 1. Open the upside of Front Panel Front panel 2. Put up the Front panel. The hook of panel comes off. Panel hook 3. Come down the panel and then remove the air filter.
Maintenance and Service Outdoor Unit NOTICE Dirty or clogged coils will reduce the operating efficiency of the system and cause higher operating costs. Air Intake Vents Connecting Wires (Rear) (Side) Piping Air intake vents Piping Drain Hose Air Outlet Vents Air outlet vents Base Plate Cleaning Filter • Recomended use period : About 3 months 1. Open the upside of Front panel. 2. Put up the front panel. The hook of panel comes off. 3. Remove air filter and then pull out the NANO PLASMA filter.
Maintenance and Service Common Problems and Solutions Before calling for service If you have problems with your air conditioner, read the following information and try to solve the problem. If you cannot find a solution, turn off the air conditioner and contact your dealer. Air conditioner does not operate 1. Ensure that the air conditioner is plugged into a proper outlet. 2. Check the fuse or circuit breaker. 3. Check whether the voltage is unusually high or low.
Maintenance and Service Troubleshooting The air conditioner may be operating abnormally when: Air conditioner does not start Air conditioner does not cool as it should Possible Causes What To Do ■ The air conditioner is unplugged. • Make sure the air conditioner plug is pushed completely into the outlet. ■ The fuse is blown/circuit breaker is tripped. • Check the house fuse/circuit breaker box and replace the fuse or reset the breaker. ■ Power failure.
Memo 30 Room Air Conditioner
P/No.: 3828A21011E Printed in Korea After reading this manual, keep it in a place easily accessible to the user for future reference.
